Nanostructural characteristics, mechanical properties, and osteoblast response of spark plasma sintered hydroxyapatite

Li, H.
Chow, V.
Cheang, P.
Khor, Khiam Aik

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Publication date

January 2007

DOI

10.1002/jbm.a.31143

Publisher

Wiley

Journal

Journal of Biomedical Materials Research Part A

Abstract

This study aimed to fabricate bulk nanostructured hydroxyapatite (HA) pellets with improved properties using spark plasma sintering (SPS) for orthopedic applications. Spray-dried nanostructured HA (nSD-HA) powders were consolidated using the rapid SPS processing. The SPS processed nSD-HA was characterized using Raman spectroscopy and field emission scanning electron microscopy (FESEM). Mechanical properties of the consolidates were also evaluated through indentation approach. The nanostructures (∼80 nm in grain size) of the starting powders were successfully retained after the SPS processing operated at 950°C with <15 min holding time. The SPS consolidated nSD-HA showed promising mechanical properties, ∼118 GPa for Young's modulus, and up t...

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Nanostructural characteristics, mechanical properties, and osteoblast response of spark plasma sintered hydroxyapatite

Abstract

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Nanostructural characteristics, mechanical properties, and osteoblast response of spark plasma sintered hydroxyapatite

Abstract

Extracted data

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